CN105371792A - Turning axis digital phase distinguishing measurement method - Google Patents
Turning axis digital phase distinguishing measurement method Download PDFInfo
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- CN105371792A CN105371792A CN201410419909.0A CN201410419909A CN105371792A CN 105371792 A CN105371792 A CN 105371792A CN 201410419909 A CN201410419909 A CN 201410419909A CN 105371792 A CN105371792 A CN 105371792A
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- digital phase
- phase detection
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- 238000000691 measurement method Methods 0.000 title abstract 2
- 238000005259 measurement Methods 0.000 claims abstract description 11
- 238000000034 method Methods 0.000 claims abstract description 9
- 238000001514 detection method Methods 0.000 claims description 22
- 238000001914 filtration Methods 0.000 claims description 4
- 239000000523 sample Substances 0.000 abstract description 4
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000009897 systematic effect Effects 0.000 description 1
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Abstract
The invention discloses a turning axis digital phase distinguishing measurement method, which provides a solution scheme for more accurately measuring the axis in the case of turning of a hydrogenerator. The method comprises the following steps: a probe (1) detects and obtains data, after pretreatment of a digital bandpass filter circuit (2), and digital phase distinguishing algorithm treatment is then carried out via a digital phase distinguishing signal treatment chip (3). The treatment method comprises steps: data acquired at two times are superposed, a phase difference is calculated, accurate axis measurement data are obtained through the digital phase distinguishing algorithm, and the data are sent to a turning main control module (4) for further operation.
Description
Technical field
Technical solution of the present invention belongs to electric and electronic technical field, is a kind of jiggering axis digital phase detection measuring method, provides a set of to shaft centerline measurement solution more accurate during hydrogenerator jiggering.
Background technology
The position of the rotor axis of hydrogenerator is needed during hydroelectric power plant's turning hydrogenerator set for alignment, the invention provides a set of to shaft centerline measurement solution more accurate during hydrogenerator jiggering, probe (1) detects and obtains data, after digital band pass filtering circuit (2) pre-service, digital phase detection algorithm process is carried out again through digital phase detection signal processing chip (3), disposal route is superposed the data of twice collection, calculate phase differential, accurate shaft centerline measurement data are drawn by digital phase detection algorithm, jiggering main control module (4) is sent to do further operation.The problem of axis is more accurately measured when the invention solves hydrogenerator jiggering.
Summary of the invention
The problem of axis is more accurately measured when the invention solves hydrogenerator jiggering.
The invention provides a set of to shaft centerline measurement solution more accurate during hydrogenerator jiggering, probe (1) detects and obtains data, through digital band pass filtering circuit (2) pre-service, the signal drawn after pre-service carries out digital phase detection algorithm process through digital phase detection signal processing chip (3), digital phase detection algorithm draws accurate shaft centerline measurement data, jiggering main control module (4) is sent to do further operation, digital phase detection algorithm, the data of twice collection are it is characterized in that to superpose, calculate phase differential, accurate shaft centerline measurement data are drawn by digital phase detection algorithm.
The invention has the beneficial effects as follows, when solving hydrogenerator jiggering, more accurately measure the problem of axis.
Accompanying drawing explanation
Fig. 1 is systematic schematic diagram of the present invention.
Fig. 2 is algorithm flow chart of the present invention.
Embodiment
In FIG, probe (1) detects and obtains data, through digital band pass filtering circuit (2) pre-service, the signal drawn after pre-service carries out digital phase detection algorithm process through digital phase detection signal processing chip (3), digital phase detection algorithm draws accurate shaft centerline measurement data, jiggering main control module (4) is sent to do further operation, digital phase detection algorithm, the data of twice collection are it is characterized in that to superpose, calculate phase differential, draw accurate shaft centerline measurement data by digital phase detection algorithm.
Claims (2)
1. a jiggering axis digital phase detection measuring method, is characterized in that: comprise the following steps:
1) (1) detection of popping one's head in obtains data, through digital band pass filtering circuit (2) pre-service.
2) signal drawn after pre-service carries out digital phase detection algorithm process through digital phase detection signal processing chip (3).
3) digital phase detection algorithm draws accurate shaft centerline measurement data, sends to jiggering main control module (4) to do further operation.
2. digital phase detection algorithm according to claim 1, is characterized in that the data of twice collection to superpose, and calculates phase differential, draws accurate shaft centerline measurement data by digital phase detection algorithm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410419909.0A CN105371792A (en) | 2014-08-25 | 2014-08-25 | Turning axis digital phase distinguishing measurement method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410419909.0A CN105371792A (en) | 2014-08-25 | 2014-08-25 | Turning axis digital phase distinguishing measurement method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105371792A true CN105371792A (en) | 2016-03-02 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410419909.0A Pending CN105371792A (en) | 2014-08-25 | 2014-08-25 | Turning axis digital phase distinguishing measurement method |
Country Status (1)
| Country | Link |
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| CN (1) | CN105371792A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6316934B1 (en) * | 1998-09-17 | 2001-11-13 | Netmor Ltd. | System for three dimensional positioning and tracking |
| CN1364998A (en) * | 2002-02-09 | 2002-08-21 | 重庆大学 | Monitoring and diagnosing method for the gap between defective vanes of vane machine |
| JP2005156501A (en) * | 2003-11-28 | 2005-06-16 | Japan Atom Energy Res Inst | Simultaneous measurement method for temperature / fluid phase discrimination and mixed probe of mixed phase consisting of liquid and gas |
| CN201382954Y (en) * | 2009-01-23 | 2010-01-13 | 王绍德 | Torsion vibration and rotation speed measuring device |
| CN201464387U (en) * | 2009-08-11 | 2010-05-12 | 中国农业大学 | A Soil Moisture Meter Based on Phase Detection Principle |
| CN103869306A (en) * | 2012-12-12 | 2014-06-18 | 中国电子科技集团公司第五十研究所 | Metal and non-linear object composite detector |
-
2014
- 2014-08-25 CN CN201410419909.0A patent/CN105371792A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6316934B1 (en) * | 1998-09-17 | 2001-11-13 | Netmor Ltd. | System for three dimensional positioning and tracking |
| CN1364998A (en) * | 2002-02-09 | 2002-08-21 | 重庆大学 | Monitoring and diagnosing method for the gap between defective vanes of vane machine |
| JP2005156501A (en) * | 2003-11-28 | 2005-06-16 | Japan Atom Energy Res Inst | Simultaneous measurement method for temperature / fluid phase discrimination and mixed probe of mixed phase consisting of liquid and gas |
| CN201382954Y (en) * | 2009-01-23 | 2010-01-13 | 王绍德 | Torsion vibration and rotation speed measuring device |
| CN201464387U (en) * | 2009-08-11 | 2010-05-12 | 中国农业大学 | A Soil Moisture Meter Based on Phase Detection Principle |
| CN103869306A (en) * | 2012-12-12 | 2014-06-18 | 中国电子科技集团公司第五十研究所 | Metal and non-linear object composite detector |
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Application publication date: 20160302 |
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| WD01 | Invention patent application deemed withdrawn after publication |